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Daylight voltmeters fit for harsh setups

Posted: 04 Dec 2008 ?? ?Print Version ?Bookmark and Share

Keywords:panel voltmeter? harsh environment? power supply?


Murata Power Solutions has launched ruggedized, daylight readable DMU-30ACV/DCV series of panel mount, digital voltmeters designed for applications in harsh environments. The compact 85- to 264Vac mains, or 110- to 300Vdc battery-powered meters are suitable for use in operating temperatures ranging from -25C to +60C.

Typical applications include inverters and generators, battery chargers, power distribution units and power supplies in markets such as industrial, test and measurement, alternative energy/back-up power and marine.

The DMU-30ACV/DCV series comprises three AC models capable of measuring up to 20Vac, 200Vac and 300Vac, and four DC models with ranges up to 200mVdc, 2Vdc, 20Vdc and 200Vdc. Flexible inputs provide 2,000V isolation between power source and input signal, and allow true-rms measurement of complex waveforms plus simple 2-wire operation for AC mains monitoring.

The super bright, three and a half digit red LED display is readable in direct sunlight with no shading devices and automatically adjusts brightness for indoor or night time viewing. An externally accessible adjustment for minimum intensity is also provided. In addition, the DMU-30ACV/DCV series has a low power consumption of typically 1W in full sunlight and 0.1W at night.

Easy integration into customer designs is supported by vibration-resistant panel mounting using six M3 stainless steel screws. Reliable screw-style terminal blocks are provided for all input / output connections. The one-piece polycarbonate housing with integrated red bezel and gasket is designed to meet NEMA-4 / IP65 moisture resistance requirements.

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